<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="./dist/css/bootstrap.css">
    <style>

    </style>
</head>
<body>
    <div class="btn btn-flow btn-danger">动画按钮</div>
    <div class="btn btn-danger btn-lg ">按钮</div>
    <div class="btn btn-arrow btn-info" style="vertical-align:middle"><span>按钮尖头 </span></div>
    <div class="btn btn-push btn-danger btn-lg" ><span>按钮下压 </span></div>
</body>
</html>